mathsurgery - Processing and representing data; Interpreting and discussing results year 7

All
• Construct frequency tables, pictograms and bar and line graphs to represent the frequencies of events and changes over time (Y5)
• Construct and interpret frequency tables, bar charts with grouped discrete data, and line graphs; interpret pie charts (Y6)
• Describe & interpret results & solutions to problems using the mode, range, median & mean (Y6)

Most
• Identify the necessary information to understand or simplify a context or problem
• Calculate statistics for small sets of discrete data:
(i) find the mode, median and range, and the modal class for grouped data
(ii) calculate the mean, including from a simple frequency table, using a calculator for a larger number of items
• Construct, on paper and using ICT, graphs and diagrams to represent data, including:
(i) bar-line graphs
(ii) frequency diagrams for grouped discrete data
(iii) simple pie charts
• Interpret diagrams and graphs (including pie charts), and draw simple conclusions based on the shape of graphs and simple statistics for a single distribution

Some
• Identify the mathematical features of a context or problem
• Calculate statistics for sets of discrete and continuous data, including with a calculator and spreadsheet; recognise when it is appropriate to use the range, mean, median and mode and, for grouped data, the modal class• Construct graphical representations, on paper and using ICT, and identify which are most useful in the context of the problem. Include:
(i) pie charts for categorical data
(ii) bar charts and frequency diagrams for discrete and continuous data
(iii) simple line graphs for time series
(iv) simple scatter graphs
(v) stem-and-leaf diagrams
• Interpret tables, graphs and diagrams for discrete and continuous data, relating summary statistics and findings to the questions being explored

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Processing and representing data; Interpreting and discussing results year 7